In order to register for VPN, you need to do is send an email to firstname.lastname@example.org with subject vpnod and empty the body field of the mail.
Select the Connect to a workplace option and click Next to continue.
Select the No,create a new connection option and click Next to continue.
Then, press the Use my Internet connection (VPN).
Enter your username and password which you got from the email from vpnod.com. Then, create the connection. Now, you can click on the Network icon in the taskbar, it will display all the network connections including vpn.vpnod.com
Now, you can connect to the VPNOD connection by click connect button under the VPNOD. If you can want, you can check your IP Address from www.whatismyipaddress.com